Accessory for internal-combustion engines.



E. D. MEANS. H ACCESSORY FOR INTERNAL COMBUSTION ENGINES.

APPLIUATION FILED FEB. 16, 1910.

963 61 Q; Patented July 5, 1910 I-VlT/VESSES I INVENTOR UNITED STATESlQATENT oFrIoE.

EUGENE n; MEANS, or ,TOWANDA, rEN sYLvANIA;

ACCESS OBEY FOR INTERNAL-COMBUSTION ENGINES.

To all whom it, may concern:

Be it: known that I, EUGENE of Towanda, in the county of Bradford andState of Pennsylvania, have invented I certain new and usefulImprovements in Accessories -for Internal -Combustion Engines; and I dohereby declare the following to be a 'full, clear, and exact descriptionof ,thc invention,such'nas will enable others skilled in the art towhich it appertains to make and use the same.

This invention relates to improvements in accessories for internalcombustion engines,

and more particularly to such asare used,

with motor vehicles.

In the operation of internalcombustion engines on automobiles, it, oftenhappens that the explosions will iniss and when the engine is of themulti-cylinder type, the

'operator has considerable dittioulty in determining in. which cylinderthe trouble exists. In his ett'orts to correct the Zlifliculty, it hasbeen necessary for him to remove the nuts and electrical connections ofthe spark 2-5 plug onone or more of the cylinders and in doing this thesmall .parts removed are often lost, and furthermore the operator willbe subjcctedto thev discomfort of electrical shocks. y

The object oflmy present invention is to obviate the difficulties andinconveniences above referred to and to providemeans whereby the circuitof any spark plug of the engine can be readily opened Without thenecessity of removing anyparts, and to so construct such meansthat thesame shall be v readily applicable to any spark plug, now

in use and without removing the latter from the engineer in any waymodifying its 40 construction.

'ith this object. in view the invention V. consists in certain novelfeatures of construction and combinations of parts as hereinafter sett'orth and pointed out in the claims.

In the. accompanying drawings, Figure 1 is a view showing the apphcationof my iniprovements to a spark plug, and Fig. 2

is a sectional view. 1 I

1 represents a spark plug of any approved -constructiou and providedwith the usual threaded shank 2. Onthi's shank my improved circuitcontrolling device is applied. The device comprises two metallic plates3-l, electrically spaced apart and held by Specification of LettersPatent. Application filed February 16, 1910. Serial No. 544,20.

D. MuAN s,

. in set forth.

Patented July 5, 1910.

means of a block 5 of suitable insulating I material. v

The plates 3 t are provided with later ally projec ting arms 6-7 whichmay be made integral withsaid plates and to one of these arms, a switchlever S is pivotally attached and adapted to cooperate with the other ofsaid arms for the purpose of electrically connect-ingthe plates'3 and 4.The switch lever comprises two metallic members 8" spaced apart toreceive the arms 6 7 between them, and a handle 8 of insulatin material.The plate 3 is made with a ho e for the accommodation of the stem 2 ofthe spark plug and is suitably clamped in position on said stem by meansof a nut 9.

Having fully described my invention what I claim as new and desire tosecure by Letters-Patent is,

L An accessory for internal combustion engines,comprising a block ofinsulating material, two metal pl ates secured thereto and electricallyseparated therebyyone of said plates adapted for'attachmnt to a sparkplug, a binding post carried by the other plate, and a switch leverpivotally connected to one of said plates and adapted to be electricallyconnected with and disconnected from the other plate for closing andopeningv the circuit of the spark plug. 2. An accessor for internalcombustion engines, comprising a block of insulating material, two metalplates secured to said block and electrically se aratedthereby, one ofsaid plates adapted or attachment to a spark plug, abinding'postcarried. by the other plate, said plates provided with lateral too arms,and a .switch lever pivoted to the lateral arm of one plate and adaptedto engage and makeelectrlcal contact with the lateral arm of the otherplate.

8. An accessory for internal combustion and a switch lever pivoted tothe arm of one plate and comprismg two spaced members to receive the armof the other plate between them,

4. In a (leveeof the character descrlbed,

the com-hlnatiomof two metallic-plates, each haw i119; mam, msulatingmeans separating eaitllgllates one of eakhplates adapted for attac entto a "spark I \'1g,'-a bin mg post otal ly attached to the arm of qne ofsaid plates am} adapted to electrically and mochanically efigage the armofjthe other )late. Iii testnnony whereof, I have signe this EUGENE D.MEANS. .Witnesses:

JAMES H. COOK, 7 WILLIAM P. WILSON.

15 an the other plate',an a'switchflever-piv-

